We summarize the requirements for a stereoscopic microscope as part of an investigational excimer laser corneal sculpting apparatus, describe how a Zeiss surgical microscope was integrated into that apparatus and repo...
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ISBN:
(纸本)0819409251
We summarize the requirements for a stereoscopic microscope as part of an investigational excimer laser corneal sculpting apparatus, describe how a Zeiss surgical microscope was integrated into that apparatus and report the in situ optical performance of the microscope.
Rank Pneumo has worked with the Center for Optics Manufacturing and the Center's Manufacturing Advisory Board to design a multi-axis prism grinding machine. The Opticam PM is a three axis, high precision CNC recip...
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ISBN:
(纸本)0819409251
Rank Pneumo has worked with the Center for Optics Manufacturing and the Center's Manufacturing Advisory Board to design a multi-axis prism grinding machine. The Opticam PM is a three axis, high precision CNC reciprocating grinder. It is designed for the automated manufacturing of glass prisms. Unique features of the design incorporate electrolytic in- process dressing of the finishing wheel, nested grinding wheels and machine resident metrology to provide RQM (Real-time Quality Management).
A scheme of an optical switch using a matrix of reprogrammable holograms is discussed. The light from each input channel is deflected to an output channel with a separate microhologram. The microholograms are recorded...
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ISBN:
(纸本)0819409251
A scheme of an optical switch using a matrix of reprogrammable holograms is discussed. The light from each input channel is deflected to an output channel with a separate microhologram. The microholograms are recorded and overrecorded with two acousto-optical deflectors on a bacteriorhodospin photo medium. The experiments have been carried out on a prototype with 20 × 20 channels. As shown, the capacity of such a switch can be increased up to 104 × 104.
The first-order Double-Gauss 4 element objective arrangement derived from a triplet type by splitting the central negative element is discussed. The Petzval sum of the lens system was chosen and calculated. With desir...
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ISBN:
(纸本)0819409251
The first-order Double-Gauss 4 element objective arrangement derived from a triplet type by splitting the central negative element is discussed. The Petzval sum of the lens system was chosen and calculated. With desired axial color, glasses will be selected and axial color calculated. By using the aspherical coefficients, we discuss the aberrations compensation. Following the design procedures to design a camera objective, the lens data after optimization and the MTF curve are presented.
A typical CIM architecture consists of several standalone software applications which are integrated to provide a complete automated manufacturing environment. An essential component of CIM is a geometrical database t...
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ISBN:
(纸本)0819409251
A typical CIM architecture consists of several standalone software applications which are integrated to provide a complete automated manufacturing environment. An essential component of CIM is a geometrical database that contains the models of systems and their components. All the individual applications must interface with that database, and direct interface to other software tools is an advantage. Traditional major components of this environment include a CAD/CAE system and a CAM system. The relationship between the two is clear, the CAD/CAE component produces a design which is transferred to the CAM component for production. An optical system contains two types of elements, optical and mechanical, with disparate design and manufacturing methods. The paper discusses the optical CIM environment and the basic components that it requires.
Although the principles of concurrentengineering and rapid product cycles are not new concepts in the industrial sector, the optics manufacturing industry has witnessed few technological advances since the 1940's...
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ISBN:
(纸本)0819409251
Although the principles of concurrentengineering and rapid product cycles are not new concepts in the industrial sector, the optics manufacturing industry has witnessed few technological advances since the 1940's. At present the optics industry maintains outdated stand-alone manufacturing equipment and systems that do little to foster integration or communications. 'Islands of Technology', spawned from the latest offerings of CNC controlled equipment, are generally stand alone systems incapable of supporting communication with other process equipment, not to mention the total business enterprise. This approach increases the cost in design and manufacture of optical systems while negatively impacting competitiveness in the global marketplace.
Replicated optics have been available since the 1950's. We recently undertook the development of 'supersmooth' (surface roughness &le 5 angstroms rms) replicated optics. This work has involved the repl...
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ISBN:
(纸本)0819409251
Replicated optics have been available since the 1950's. We recently undertook the development of 'supersmooth' (surface roughness &le 5 angstroms rms) replicated optics. This work has involved the replication of large optical flats. Measurements to determine the roughness of the surface have indicated that our process imparts an increase in surface roughness of less than 2 angstroms rms to a flat replica. We did not determine the absolute roughness of the surface but are able to show that the change in surface roughness was consistent between the two techniques used. current work involves the replication of spherical and off axis parabolics.
Advanced composites have been effectively used in space applications such as telescopes, optical benches, and metering structures. As the sophistication of optics and instrumentation increases, the need for near-zero ...
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ISBN:
(纸本)0819409251
Advanced composites have been effectively used in space applications such as telescopes, optical benches, and metering structures. As the sophistication of optics and instrumentation increases, the need for near-zero outgassing and extremely dimensionally stable composites becomes of paramount importance. Continuing improvements in resin and reinforcing fiber technology have resulted in a wider selection of materials for the composite designer of dimensionally stable structures. Additional improvements in metal sealing techniques promise unprecedented long-term environmental stability. These new options allow the designer to develop a dimensional stability strategy which conforms to design requirements and yields an optimum, cost-effective composite design approach. This paper addresses the major stability issues in composites and how stability can be predicted for long-term applications, along with design options to achieve program goals. Low-moisture-absorbing composites based on cyanate esters, metal sealing techniques, and long-range stability are also addressed.
The Center for Optics Manufacturing (COM), established in 1989 at the University of Rochester's Institute of Optics, is a strategic collaboration of the APOMA (American Precision Optics Manufacturers Association),...
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ISBN:
(纸本)0819409251
The Center for Optics Manufacturing (COM), established in 1989 at the University of Rochester's Institute of Optics, is a strategic collaboration of the APOMA (American Precision Optics Manufacturers Association), several academic institutions (Arizona, Central Florida, and Rochester), and the U.S. Army Material Command. This focused alliance is forging the optics industry's course for continuous improvement through novel manufacturing programs that provide the next generation technology, processes, and interactive training necessary to drive industry competitiveness to new levels.
The Center for Optics Manufacturing (COM) Process Science development program has advanced the current state of the art in optics manufacturing. Initial data indicates that the newly developed deterministic microgrind...
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ISBN:
(纸本)0819409251
The Center for Optics Manufacturing (COM) Process Science development program has advanced the current state of the art in optics manufacturing. Initial data indicates that the newly developed deterministic microgrinding process will generate specular optical surfaces. Deterministic microground surfaces, with 100 - 300 angstroms surface finishes, 1 - 2 microns of subsurface damage, and 1 wave peak-to-valley surface figure, have been produced on a range of glass types. Total cycle time, using a modified machine, took an average of five minutes per surface from start to finish. The high speeds, slow infeed rates, precision spindle, and computer control that were required to produce these microground surfaces could not have been achieved on current conventional equipment, thus emphasizing the importance of the Center's Process Science program.
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